CN209041587U - A kind of eccentric shaft type louver valve - Google Patents

Abstract

The utility model discloses a kind of eccentric shaft type louver valves, including valve body and multiple valve shafts, relative position on the inside of valve body is provided with a pair of baffle being staggered, two baffles are distributed in valve block internal diameter to the not ipsilateral of direction, multiple valve shafts both pass through valve body and uniform intervals are arranged, the adjustable plate rotated in valve body is provided on each valve shaft, multiple valve shafts are driven by transmission mechanism by driving mechanism and rotated；The both ends that each valve shaft is placed on the outside of valve body are provided with the seal assembly being fixedly linked with valve outer wall, seal assembly includes the preceding sealing structure and rear sealing structure being set on the outside of valve shaft, it is connected between preceding sealing structure and rear sealing structure by being set in the sealing shroud on the outside of valve shaft, and there are seal chambers between sealing shroud and valve shaft, form double sealing structure between preceding sealing structure, rear sealing structure and sealing shroud；The utility model compared with prior art, improves the sealing performance of louver valve, and easy to adjust, quick.

Description

A kind of eccentric shaft type louver valve

Technical field

The utility model relates to valve technology fields, and in particular to a kind of eccentric shaft type louver valve.

Background technique

Manual, electric louver valve, the development of through a long time, be widely used to cement, metallurgy, mine, building materials, chemical industry, In the dust-laden cold wind or hot wind gas pipeline of ventilation, environment-friendly engineering in the industries such as power station, glass, as gas medium flow tune Section or disconnecting device, it can match composition different performance equipment with various actuators.

The valve shaft of louver valve is sealed by sealing shroud in the prior art, during long-term operation, is only led to Sealing shroud is crossed to be sealed to valve shaft, poor sealing performance causes to leak in the process of running.

Utility model content

For the deficiency in the presence of the prior art, the purpose of this utility model is to provide a kind of eccentric shaft type blinds Valve, to solve only to be sealed valve shaft by sealing shroud, poor sealing performance, and cause in operation in the prior art The problem of leaking in the process.

To achieve the above object, the utility model uses a kind of the following technical solution: eccentric shaft type louver valve, including Valve body and multiple valve shafts, the relative position on the inside of valve body are provided with a pair of baffle being staggered, and two baffles are distributed in valve body Radial direction it is not ipsilateral, multiple valve shafts both pass through valve body and uniform intervals and arrange, are provided in valve body on each valve shaft The adjustable plate of rotation, multiple valve shafts are driven by transmission mechanism by driving mechanism and are rotated；Each tune is driven by multiple valve shafts It saves plate and rotates synchronously the connected state for carrying out application valve body with the cooperation of two baffles；

The both ends that each valve shaft is placed on the outside of valve body are provided with the seal assembly being fixedly linked with valve outer wall, Seal assembly includes the preceding sealing structure and rear sealing structure being set on the outside of valve shaft, between preceding sealing structure and rear sealing structure It is connected by being set in the sealing shroud on the outside of valve shaft, and there are seal chamber, preceding sealing structures, rear sealing between sealing shroud and valve shaft Double sealing structure is formed between structure and sealing shroud.

Compared with the prior art, the utility model has the following beneficial effects:

This louver valve is made of valve body, valve shaft, baffle, adjustable plate, driving mechanism and transmission mechanism, is with driving mechanism Power drives multiple valve shafts to rotate by transmission mechanism, so that the cooperation of adjustable plate and baffle is carried out the connected state of application valve body, adjusts Process is convenient and efficient；And valve shaft is sealed it by seal assembly, seal assembly by preceding sealing structure, rear sealing structure and The double sealing structure that sealing shroud is constituted, improves the sealing performance of valve shaft, this valve body is avoided to leak in the process of running.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is sectional view of the Fig. 1 along line A-A；

Fig. 3 is the structural schematic diagram of the seal assembly in Fig. 1.

Specific embodiment

The utility model is described in further detail below by specific embodiment:

Appended drawing reference in Figure of description includes: valve body 1, valve shaft 2, baffle 3, adjustable plate 4, sealing shroud 5, axle sleeve 6, ring Connecting plate 10 after connecting plate 7 before shape, airtight and watertight padding 8, gland 9, annular, bearing 11, convex annular seating 12, driving mechanism 13, even Joint chair 14, connecting rod 15, rocking bar 16.

Embodiment

With reference to shown in FIG. 1 to FIG. 3: a kind of eccentric shaft type louver valve, including valve body 1 and multiple valve shafts 2, valve body 1 in a ring, The relative position of the inside of valve body 1 is provided with a pair of baffle 3 being staggered, and two baffles 3 are distributed in valve body 1 radial direction not Ipsilateral, multiple valve shafts 2 both pass through valve body 1 and uniform intervals are arranged, are provided with the tune rotated in valve body 1 on each valve shaft 2 Plate 4 is saved, multiple valve shafts 2 are driven by transmission mechanism by driving mechanism 13 and rotated；Each adjustable plate is driven by multiple valve shafts 2 4 rotate synchronously the connected state for carrying out application valve body 1 with the cooperation of two baffles 3；The both ends that each valve shaft 2 is placed in 1 outside of valve body are equal Be provided with the seal assembly being fixedly linked with 1 outer wall of valve body, seal assembly include be set in 2 outside of valve shaft preceding sealing structure and Sealing structure afterwards is connected by being set in the sealing shroud 5 in 2 outside of valve shaft between preceding sealing structure and rear sealing structure, and sealed There are seal chambers between set 5 and valve shaft 2；When valve body 1 is in sealing state, each adjustable plate 4 is successively overlapping in valve body 1 Setting, and the adjustable plate 4 for being located at two sides offsets with two baffles 3 respectively；Pass through the arrangement of each adjustable plate 4 and two baffles 3 To improve the sealing performance of valve body 1 in sealed states.

Preceding sealing structure in this programme includes the axle sleeve 6 for being set in 2 outside of valve shaft, and axle sleeve 6 includes turning with 2 outer wall of valve shaft The fitting section of dynamic fitting setting and the interval section being arranged with valve shaft 2 outer wall interval, interval section are located at close to the side of sealing shroud 5, Connecting plate 7 is connected before annular between interval section and sealing shroud 5 by being set in the outside of valve shaft 2, between interval section and valve shaft 2 between It has a rest filled with airtight and watertight padding 8, the interval between interval section and valve shaft 2 is embedded with the filler that compression is sealed to airtight and watertight padding 8 Gland 9；Sealing structure includes connecting plate 10 after the annular for being set in 2 outside of valve shaft, connecting plate 10 and 5 stationary phase of sealing shroud after annular afterwards Even, fixing sleeve is equipped with bearing 11 on valve shaft 2, and bearing 11 is placed on the outside of seal chamber, and 11 outer sheath of bearing is equipped with and connecting plate after annular The 10 convex annular seatings 12 being fixedly linked are sealed bearing 11 by connecting plate 10 after convex annular seating 12 and annular；Pass through The structure setting of preceding sealing structure and rear sealing structure improves valve shaft 2 to make this sealing structure have good sealing performance Sealing performance, bearing 11 is placed in outside seal chamber and valve body 1 and forms external bearing arrangement, makes it in high-temperature dust environment In have good adaptability.

Transmission mechanism in this programme include from driving mechanism 13 driving rotation drive rod and each valve shaft 2 with set The drive mechanism set, each drive mechanism include the fixed attachment base 14 being set on valve shaft 2, attachment base 14 and valve shaft 2 it Between connected by flat key, be fixedly installed connecting rod 15 on attachment base 14, connecting rod 15 is connected with rocking bar 16, each rocking bar by pin shaft 16 are connected with drive rod rotation；Driving mechanism 13 can be stepper motor, and driving mechanism 13 is consolidated by actuator bracket It is fixed；Foring 15 mechanism of connecting rod by drive rod, connecting rod 15 and rocking bar 16 etc. drives each valve shaft 2 to synchronize rotation.

In use, starting driving mechanism 13, driving mechanism 13 drives drive rod rotation, and the drive rod of rotation passes through each company Bar 15 and each rocking bar 16 synchronize rotation, to make each valve shaft 2 that each adjustable plate 4 be driven to synchronize rotation, each The setting state that is successively overlapping is detached between adjustable plate 4, valve body 1 is in connected state, by the rotational angle of adjustable plate 4 come The aperture of control valve；When needing that valve body 1 is made to be in sealing state, drive rod, connecting rod 15, rocking bar are driven by driving mechanism 13 16 and valve shaft 2 drive each adjustable plate 4 to rotate backward, each adjustable plate 4 is successively overlapping setting, and position in valve body 1 Adjustable plate 4 in two sides offsets with two baffles 3 respectively.

This louver valve is suitable for using at 650 DEG C of temperature below, can be used for ventilating air, flue gas and dusty gas etc., Each adjustable plate is all made of 2C13 steel plate and is fabricated to mesh shape, welds hexsteel in each grid, is then poured wear-resistant material, has There is higher structural strength.

Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this The technical solution of utility model is modified or replaced equivalently, without departing from this coal-contained wastewater coal-contained wastewater utility model technology The objective and range of scheme, should all cover in the scope of the claims of the utility model.

Claims (5)

1. a kind of eccentric shaft type louver valve, which is characterized in that including valve body and multiple valve shafts, the relative position on the inside of valve body is arranged Have a pair of baffle being staggered, two baffles are distributed in valve block internal diameter to the not ipsilateral of direction, multiple valve shafts both pass through valve body and Uniform intervals are arranged, are provided with the adjustable plate rotated in valve body on each valve shaft, multiple valve shafts are passed through by driving mechanism Transmission mechanism driving rotation；Each adjustable plate is driven to rotate synchronously with the cooperation of two baffles come the company of application valve body by multiple valve shafts Logical state；

The both ends that each valve shaft is placed on the outside of valve body are provided with the seal assembly being fixedly linked with valve outer wall, sealing Component includes the preceding sealing structure and rear sealing structure being set on the outside of valve shaft, is passed through between preceding sealing structure and rear sealing structure It is set in the sealing shroud on the outside of valve shaft to be connected, and there are seal chamber, preceding sealing structures, rear sealing structure between sealing shroud and valve shaft Double sealing structure is formed between sealing shroud.

2. a kind of eccentric shaft type louver valve according to claim 1, it is characterised in that: the preceding sealing structure includes being arranged Axle sleeve on the outside of valve shaft, axle sleeve include being bonded the fitting section of setting with the rotation of valve shaft outer wall and being arranged with valve shaft outer wall interval Interval section, interval section are located at close to the side of sealing shroud, the annular between interval section and sealing shroud by being set on the outside of valve shaft Preceding connecting plate is connected, and the interval between interval section and valve shaft is filled with airtight and watertight padding, and the interval between interval section and valve shaft is embedded with The gland of compression is sealed to airtight and watertight padding.

3. a kind of eccentric shaft type louver valve according to claim 1, it is characterised in that: sealing structure includes being arranged after described The connecting plate after the annular on the outside of valve shaft, connecting plate is fixedly linked with sealing shroud after annular, and fixing sleeve equipped with bearing, set by bearing on valve shaft On the outside of the seal chamber, bearing outer sheath is equipped with the convex annular seating being fixedly linked with connecting plate after annular, by convex annular seating and Connecting plate is sealed bearing after annular.

4. a kind of eccentric shaft type louver valve according to any one of claim 1-3, it is characterised in that: the transmission mechanism Including the drive mechanism being equipped with by the drive rod and each valve shaft of driving mechanism driving rotation, each drive mechanism is wrapped The fixed attachment base being set on valve shaft is included, is fixedly installed connecting rod on attachment base, connecting rod is connected with rocking bar by pin shaft, each Rocking bar is connected with drive rod rotation.

5. a kind of eccentric shaft type louver valve according to claim 1, it is characterised in that: the valve body is in sealing state When, each adjustable plate is successively overlapping setting in valve body, and the adjustable plate for being located at two sides offsets with two baffles respectively.